I feel like looking at this is going to reduce a sanity meter or something.
Anyway, great job with the caustics. I'd say to watch the density of the effect - how spaced out the actual caustics are makes me think that this is meant to be a wee critter, but the wind wave density up top makes me think it's meant to be an incredibly large one.
It's the opposite of a big deal. You could always do the scale cheat sheet and throw in some birds. Underwater. It'll work.